Need to replace these sash balances...4 pair of 27" (sash size=40" x 30") and 4 pair of I5" (sash size=18" x 44").
Sash balances
Hello,
Your longer balance has winged fittings similar to the S380 or S385 channel balance. You’ll need to measure as shown below. The Series 380 has a 1" bottom attachment, and the Series 385 has a 1-3/32" attachment.
The shorter balance does not appear to have wings but they could have broken off. If the end fittings are not winged, we also offer the S351, with a 15-002 bottom attachment, or S390, with a 15-001 bottom attachment. Take a look at the image below to determine which balance you'll need.
You'll also need to weigh your sashes to determine which options you'll need. There is a chart on the product pages that explains how to choose your option based on the sash weight. Thank you and let us know if you have any other questions or concerns.